Rosa plant named ‘QIR 1623’

ABSTRACT

A new and distinct cultivar of Rose plant named ‘QIR 1623’, characterized by its upright and mounding plant habit; strong lateral branches; dark green-colored leaflets; large soft pink-colored flowers; flowers held upright on strong and erect peduncles; and good postproduction longevity.

Botanical designation: Rosa hybrida.

Cultivar denomination: ‘QIR 1623’.

BACKGROUND OF THE INVENTION

The present Invention relates to a new and distinct cultivar of Rose orRosa plant, botanically known as Rosa hybrida, commercially used as apotted Rose plant and hereinafter referred to by the name ‘QIR 1623’.

The new Rose plant is a product of a planned breeding program conductedby the Inventor in Odense, Denmark. The objective of the breedingprogram was to develop new uniform and healthy potted Rose varietieswith attractive flower colors and excellent postproduction longevity.

The new Rose plant originated from an open-pollination in March, 2013 ofRosa hybrida ‘Lys Red Klase’, not patented, as the female, or seed,parent with a unknown proprietary selection of Rosa hybrida as the male,or pollen, parent. The new Rose plant was discovered and selected by theInventor on May 19, 2014 as a single flowering plant within the progenyof the stated cross-pollination in a controlled greenhouse environmentin Odense, Denmark.

Asexual reproduction of the new Rose plant by cuttings in a controlledgreenhouse environment in Odense, Denmark since May, 2014 has shown thatthe unique features of this new Rose plant are stable and reproducedtrue to type in successive generations of asexual reproduction.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘QIR 1623’. These characteristics incombination distinguish ‘QIR 1623’ as a new and distinct Rose plant:

-   -   1. Upright and mounding plant habit.    -   2. Strong lateral branches.    -   3. Dark green-colored leaflets.    -   4. Large soft pink-colored flowers.    -   5. Flowers held upright on strong and erect peduncles.    -   6. Good postproduction longevity.

Plants of the new Rose differ from plants of the female parent, ‘Lys RedKlase’, primarily in plant habit as plants of the new Rose are morecompact and have stronger stems than plants of ‘Lys Red Klase’.

Plants of the new Rose can be compared to plants of the Rose ‘QIR 1631’,disclosed in U.S. Plant patent application Ser. No. 15/731,447. Inside-by-side comparisons, plants of the new Rose differ primarily fromplants of ‘QIR 1631’ in flower color as plants of ‘QIR 1631’ have brightred purple-colored flowers.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearanceof the new Rose plant showing the colors as true as it is reasonablypossible to obtain in colored reproductions of this type. Colors in thephotographs may differ slightly from the color values cited in thedetailed botanical description which accurately describe the colors ofthe new Rose plant.

The photograph on the first sheet comprises a side perspective view of atypical plant of ‘QIR 1623’ grown in a container.

The photograph on the second sheet is a close-up view of a typical openflower of ‘QIR 1623’.

The photograph at the top of the third sheet is a close-up view of theupper and lower surfaces of typical flowers of ‘QIR 1623’.

The photograph at the bottom of the third sheet is a close-up view ofthe upper and lower surfaces of typical leaves of ‘QIR 1623’.

DETAILED BOTANICAL DESCRIPTION

Plants of the new Rose have not been observed under all possiblecombinations of environmental conditions and cultural practices. Thephenotype may vary somewhat with variations in environmental conditionssuch as temperature and light intensity, without, however, any variancein genotype. The aforementioned photographs, following observations andmeasurements describe plants grown during the autumn in a glass-coveredgreenhouse in Odense, Denmark and under cultural practices typical ofcommercial potted Rose production. Plants were grown in 13-cmcontainers, pinched one time and were three months old when thephotographs and description were taken. During the production of theplants, day and night temperatures averaged 21° C. and light levelsranged from 60 to 100 klux. In the following description, colorreferences are made to The Royal Horticultural Society Colour Chart,2001 Edition, except where general terms of ordinary dictionarysignificance are used.

-   Botanical classification: Rosa hybrida ‘QIR 1623’.-   Parentage:    -   -   Female, or seed, parent.—Rosa hybrida ‘Lys Red Klase’, not            patented.        -   Male, or pollen, parent.—Unknown proprietary selection of            Rosa hybrida, not patented.-   Propagation:    -   -   Type.—By cuttings.        -   Time to produce a rooted young plant, summer.—About 24 days            at soil temperatures about 23° C.        -   Time to produce a rooted young plant, winter.—About 24 days            at soil temperatures about 21° C.        -   Root description.—Fibrous, fine; close to 158B in color.        -   Rooting habit.—Freely branching; medium density.-   Plant description:    -   -   Plant and growth habit.—Upright and mounding plant habit;            moderately vigorous growth habit; freely branching habit,            pinching enhances lateral branch development; dense and            bushy appearance.        -   Plant height.—About 25 cm to 30 cm.        -   Plant width (spread).—About 20 cm to 25 cm.        -   Lateral branches.—Length: About 12 cm to 18 cm. Diameter:            About 3 mm to 5 mm. Internode length: About 1 cm to 1.5 cm.            Strength: Strong. Texture: Smooth, glabrous. Color: Close to            138B. Thorns: Density: About two to four per linear            centimeter. Shape: Acicular with subulate apices. Height:            About 3 mm to 5 mm. Diameter, at base: About 2 mm to 3 mm.            Color, immature: Close to 156B. Color, mature: Close to            197B.-   Leaf description:    -   -   Arrangement.—Alternate; compound with five leaflets per            leaf.        -   Leaf length.—About 7 cm to 9 cm.        -   Leaf width.—About 5.5 cm to 6.5 cm.        -   Terminal leaflet length.—About 3.5 cm to 4.5 cm.        -   Terminal leaflet width.—About 2.5 cm to 3 cm.        -   Lateral leaflet length.—About 2.5 cm to 3.5 cm.        -   Lateral leaflet width.—About 1.5 cm to 2.5 cm.        -   Leaflet shape.—Ovate.        -   Leaflet apex.—Acute.        -   Leaflet base.—Obtuse.        -   Leaflet margin.—Serrate.        -   Leaflet texture, upper and lower surfaces.—Smooth, glabrous;            somewhat leathery.        -   Leaflet venation pattern.—Pinnate; reticulate.        -   Leaflet color.—Developing leaflets, upper surface: Close to            137A. Developing leaflets, lower surface: Close to 191A and            174A. Fully developed, upper surface: Close to N189A;            venation, close to 136A. Fully developed, lower surface:            Close to 191A; venation, close to 137A.        -   Petioles.—Leaf petiole length: About 1 cm to 1.5 cm. Leaf            petiole diameter: About 1 mm to 2 mm. Leaflet petiole            length: Less than 1 mm to 1 mm. Leaflet petiole diameter:            Less than 1 mm to 1 mm. Leaf petiole texture, upper surface:            Smooth, glabrous. Leaf petiole texture, lower surface: Small            thorns. Leaflet petiole texture, upper and lower surfaces:            Smooth, glabrous. Leaf petiole color: Upper surface: Close            to N199B. Lower surface: Close to 138A. Leaflet petiole            color: Upper surface: Close to 138A. Lower surface: Close to            138B.        -   Leaf stipules.—Quantity: Two per leaf. Length: About 1 cm to            1.5 cm. Width: About 1 mm to 2 mm. Shape: Subulate. Apex:            Acuminate. Base: Truncate; sessile. Margin: Dentate.            Texture, upper and lower surfaces: Smooth, glabrous. Color,            upper surface: Close to 137A. Color, lower surface: Close to            146A.-   Flower description:    -   -   Flower type and habit.—Large double flowers with numerous            petaloids; consistently symmetrical rosette flowers; flowers            borne on strong and erect peduncles with one terminal flower            per lateral branch; flowers face upright.        -   Flowering season.—Year-round under greenhouse conditions,            optimal flowering from spring through autumn under garden            conditions; plants begin flowering about five to seven weeks            after planting.        -   Post-production longevity.—Good postproduction longevity,            plants maintain good substance for about seven to nine            weeks; flowers persistent.        -   Fragrance.—None detected.        -   Flower diameter.—About 4 cm to 5 cm.        -   Flower depth (height).—About 2 cm to 3 cm.        -   Flower buds.—Length: About 1.5 cm to 2.5 cm. Diameter: About            1 cm to 1.5 cm. Shape: Ovoid. Color: Close to 54B.        -   Petals.—Quantity: About four to five in a single whorl;            petals imbricate. Length: About 2.5 cm to 3 cm. Width: About            3 cm to 3.5 cm. Shape: Obovate. Apex: Emarginate. Base:            Attenuate. Margin: Entire; reflexing with development.            Texture, upper and lower surfaces: Smooth, glabrous;            velvety. Color: When opening, upper surface: Close to 36C.            When opening, lower surface: Close to 36D. Fully opened,            upper surface: Close to 49C; color does not change with            development. Fully opened, lower surface: Close to 49D.        -   Petaloids.—Quantity: About 50 to 100 arranged in numerous            whorls; petaloids imbricate. Length: About 2 cm to 2.5 cm.            Width: About 2.5 cm to 3 cm. Shape: Obovate. Apex:            Emarginate. Base: Attenuate. Margin: Entire. Texture, upper            and lower surfaces: Smooth, glabrous; velvety. Color: When            opening, upper and lower surfaces: Close to 55B. Fully            opened, upper and lower surfaces: Close to 55B.        -   Sepals.—Quantity and arrangement: Typically five in a single            star-shaped whorl. Length: About 2 cm. Width: About 5 mm to            10 mm. Shape: Lanceolate. Apex: Acuminate. Base: Obtuse.            Margin: Serrate; ciliate. Texture, upper and lower surfaces:            Fine pubescence. Color: When opening, upper surface: Close            to 144A. When opening, lower surface: Close to 148C. Fully            opened, upper surface: Close to 144A. Fully opened, lower            surface: Close to 147C.        -   Peduncles.—Length: About 1 cm to 2 cm. Diameter: About 2 mm.            Strength: Strong. Aspect: Erect. Texture: Fine pubescence.            Color: Close to 144A.        -   Reproductive organs.—Stamens: Quantity per flower: About 30            to 50. Anther length: About 2 mm to 3 mm. Anther shape:            Elliptic. Anther color: Close to 18B. Filament color: Close            to 157A. Pollen amount: Scarce. Pollen color: Close to 18A.            Pistils: Quantity per flower: About 30 to 50. Pistil length:            About 5 mm to 10 mm. Stigma shape: Round. Stigma color:            Close to 161A. Style length: About 5 mm. Style color: Close            to 157A. Receptacle height: About 5 mm. Receptacle diameter:            About 5 mm to 10 mm. Receptacle shape: Cup-shaped.            Receptacle texture: Smooth, glabrous. Receptacle color:            Close to 138A. Fruits: Quantity per flower: One. Length:            About 1 cm to 2 cm. Diameter: About 1.2 cm to 2.2 cm.            Texture: Smooth, glabrous. Color: Close to 42B and 26A.            Seeds: Quantity per fruit: About six to eight. Length: About            3 mm to 5 mm. Diameter: About 2 mm to 4 mm. Texture: Smooth,            glabrous. Color: Close to 166B, 166C and 165C.-   Pathogen & pest resistance: Plants of the new Rose have not been    observed to be resistant to pathogens and pests common to Rose    plants.-   Temperature tolerance: Plants of the new Rose have been observed to    tolerate temperatures ranging from about 3° C. to about 35° C. to    40° C.

It is claimed:
 1. A new and distinct Rose plant named ‘QIR 1623’ asillustrated and described.